/Engine/Source/Runtime/GeometryCore/Public/Parameterization/MeshLocalParam.h
Calculate the UV value at Position based on the existing NbrUV, using the frame at NbrFrame, and the original SeedFrame
FVector2d PropagateUV ( const FVector3d & Position, const FVector2d & NbrUV, const [FFrame3d](API\Runtime\GeometryCore\FFrame3d_1) & NbrFrame, const [FFrame3d](API\Runtime\GeometryCore\FFrame3d_1) & SeedFrameIn ) const